/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.bigtop.manager.server.holder;

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;

public class SessionUserHolderTest {

    @BeforeEach
    public void setUp() {
        SessionUserHolder.clear();
    }

    @AfterEach
    public void tearDown() {
        SessionUserHolder.clear();
    }

    @Test
    public void testSetAndGetUserId() {
        Long testUserId = 12345L;
        SessionUserHolder.setUserId(testUserId);

        Long retrievedUserId = SessionUserHolder.getUserId();
        assertEquals(testUserId, retrievedUserId);
    }

    @Test
    public void testClear() {
        Long testUserId = 12345L;
        SessionUserHolder.setUserId(testUserId);

        SessionUserHolder.clear();

        Long retrievedUserId = SessionUserHolder.getUserId();
        assertNull(retrievedUserId);
    }

    @Test
    public void testUserIdIsThreadLocal() throws InterruptedException {
        Long mainThreadIdUserId = 12345L;
        SessionUserHolder.setUserId(mainThreadIdUserId);

        Thread testThread = new Thread(() -> {
            Long testThreadIdUserId = 67890L;
            SessionUserHolder.setUserId(testThreadIdUserId);

            Long retrievedUserId = SessionUserHolder.getUserId();
            assertEquals(testThreadIdUserId, retrievedUserId);
        });

        testThread.start();
        testThread.join();

        Long retrievedUserId = SessionUserHolder.getUserId();
        assertEquals(mainThreadIdUserId, retrievedUserId);
    }
}
